public void Read(object sourceFile)
{
try
{
using (FileStream fileToBeCompressed = new FileStream(sourceFile.ToString(), FileMode.Open))
{
_fileProcessData.LastBlockId = Convert.ToInt32(fileToBeCompressed.Length / Constants.BlockSize);
while (fileToBeCompressed.Position < fileToBeCompressed.Length && !_fileProcessData.Cancelled)
{
int bytesToRead;
long readingFileBlock = fileToBeCompressed.Length - fileToBeCompressed.Position;
if (readingFileBlock <= Constants.BlockSize)
{
bytesToRead = (int)(readingFileBlock);
}
else
{
bytesToRead = Constants.BlockSize;
}
var lastBuffer = new byte[bytesToRead];
fileToBeCompressed.Read(lastBuffer, 0, bytesToRead);
_queueReader.EnqueueForCompressing(lastBuffer);
_gZipProgress.ProcessProgress(fileToBeCompressed.Position, fileToBeCompressed.Length);
}
_queueReader.Stop();
}
}
catch (Exception ex)
{
_fileProcessData.Cancelled = true;
throw new Exception(ex.Message);
}
}
public void Read(object sourceFile)
{
try
{
int blockId = 0;
using (FileStream compressedFile = new FileStream(sourceFile.ToString(), FileMode.Open))
{
while (compressedFile.Position < compressedFile.Length)
{
var lengthBuffer = new byte[Constants.FirstByteCountToDecompress];
compressedFile.Read(lengthBuffer, 0, lengthBuffer.Length);
int blockLength = BitConverter.ToInt32(lengthBuffer, 4);
var compressedData = new byte[blockLength];
lengthBuffer.CopyTo(compressedData, 0);
compressedFile.Read(compressedData, Constants.FirstByteCountToDecompress, blockLength - Constants.FirstByteCountToDecompress);
int dataSize = BitConverter.ToInt32(compressedData, blockLength - 4);
byte[] lastBuffer = new byte[dataSize];
ByteBlock block = new ByteBlock
{
Id = blockId,
Buffer = lastBuffer,
CompressedBuffer = compressedData
};
_queueReader.EnqueueForDecompressing(block);
if ((compressedFile.Length - compressedFile.Position) / Constants.BlockSize == 0)
{
_fileProcessData.LastBlockId = blockId;
}
blockId++;
_gZipProgress.ProcessProgress(compressedFile.Position, compressedFile.Length);
}
_queueReader.Stop();
}
}
catch (Exception ex)
{
_fileProcessData.Cancelled = true;
throw new Exception(ex.Message);
}
}